Producción Científica Profesorado

Diastereomeric C-glycosyloxanthrones from picramnia antidesma



Rojas Lima, Susana

1999

María del Rosario Hernández-Medel, Claudia O. Ramírez-Corzas, M. Nalleli Rivera-Domínguez, Julieta Ramírez-Mendez, Rosa L. Santillan Baca and Susana Rojas-Lima, Diastereomeric C-glycosyloxanthrones from Picramia antidesma, Phytochemistry, 50, 1379-1383 (1999). DOI: http://dx.doi.org/10.1016/S0031-9422(98)00354-9


Abstract


Nine compounds were isolated and identified from the stem of Picramnia antidesma. Two of the isolated compounds: mayoside and saroside, which is new, are diastereoisomeric oxanthrones. The structure of saroside has been obtained on the basis of spectroscopic evidence. The absolute configuration of this diastereoisomeric pair has been determined by CD spectra, and that of saroside was further established by X-ray crystallographic analysis.



Producto de Investigación




Artículos relacionados

A practical access to acyl radicals from acyl hydrazides

3-Benzoyl-2-isopropyl-4-alkyloxazolidin-5-ones as Efficient and Inexpensive Sources of Enantiopure ?...

Diastereomeric C-glycosyloxanthrones from picramnia antidesma

Diastereoselective Synthesis of Spiro-?-lactams via Staudinger Reactio

Furocoumarins of three species of the genus Dorstenia

Further insight into three center hydrogen bonding. Participation in tautomeric equilibria of hetero...

An efficient potassium cyanide-promoted synthesis of 2-arylbenzoxazoles from [4.3.0]boron heterobicy...

Cathepsins X and B Can Be Differentiated through Their Respective Mono- and Dipeptidyl Carboxypeptid...

Diastereoselective alkylation of chiral glycinate derivatives containing the ?-phenylethyl group.

Stereoselective addition of allylmagnesium chloride to the CN bond of [4.3.0] boron heterobicycles